Hey im new and im trying to get the answers for the last 2 questions if you knows the answer please help me thanks.

x=0 and up

Step-by-step explanation:

x =0 is the axis of symmetry

The parabola goes up so the parabola opens up

Step-by-step explanation:

The axis of symmetry is the based on the vertex

x =0 is the axis of symmetry

The parabola goes up so the parabola opens up

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,